:root {
  --ink:#25282d;
  --muted:#606773;
  --line:#dce0e6;
  --accent:#2458c4;
  --paper:#f5f6f8;
  --blue:#365e9d}
* {
  box-sizing:border-box}
html {
  scroll-behavior:smooth;
  scroll-padding-top:24px}
body {
  margin:0;
  font:15px/1.7 "Segoe UI","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:white;
  letter-spacing:0}
h1,h2,h3,p,figure {
  margin:0}
a {
  color:inherit;
  text-decoration:none}
button,input {
  font:inherit}
button {
  cursor:pointer;
  color:inherit}
button,a {
  -webkit-tap-highlight-color:transparent}
button {
  border:0}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible {
  outline:3px solid #4267bb;
  outline-offset:4px}
p {
  color:var(--muted)}
[hidden] {
  display:none!important}
svg {
  width:18px;
  height:18px;
  flex:none}
button svg,a svg {
  pointer-events:none}
.container {
  width:min(1180px,calc(100% - 80px));
  margin:auto}
.header {
  display:flex;
  align-items:center;
  gap:30px;
  height:76px}
.brand {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:700;
  flex:none}
.brand img {
  width:34px;
  height:34px}
.brand small {
  font-size:11px;
  font-weight:500;
  color:#606773;
  margin-left:8px}
.nav {
  display:flex;
  gap:26px;
  margin:auto;
  font-size:13px}
.nav a:hover,.link:hover {
  color:var(--accent)}
.button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:44px;
  padding:10px 20px;
  border:1px solid var(--ink);
  border-radius:4px;
  background:var(--ink);
  color:white;
  font-size:13px;
  font-weight:600}
.button:hover {
  background:#414750}
.button.primary {
  background:var(--accent);
  border-color:var(--accent);
  color:white}
.button.primary:hover {
  background:#1c46a0}
.button.outline {
  background:white;
  border-color:#c9d0db;
  color:var(--ink)}
.button.outline:hover {
  background:#f2f5fb}
.link {
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 0;
  background:none;
  font-size:13px;
  font-weight:600}
.menu {
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  background:white;
  border-radius:4px;
  align-items:center;
  justify-content:center}
.hero {
  text-align:center;
  background:var(--paper);
  border-top:1px solid #e5e8ee;
  padding:19px 0 24px;
  position:relative}
.audience-tabs {
  display:inline-flex;
  gap:28px;
  border-bottom:1px solid #d3d9e3;
  margin-bottom:13px}
.audience-tabs button {
  display:flex;
  align-items:center;
  gap:8px;
  padding:7px 0 9px;
  border-bottom:3px solid transparent;
  background:none;
  font-size:13px;
  color:#606773}
.audience-tabs button[aria-selected=true] {
  border-bottom-color:var(--ink);
  color:var(--ink);
  font-weight:650}
.hero-kicker {
  display:block;
  font-size:11px;
  color:#606773;
  margin-bottom:8px}
.hero h1 {
  font-size:38px;
  line-height:1.4;
  font-weight:750}
.title-phrase {
  display:inline-block;
  white-space:nowrap}
.hero-sub {
  font-size:14px;
  margin:10px auto 0;
  max-width:690px}
.hero-actions {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:23px;
  margin-top:18px}
.demo-band {
  background:var(--paper);
  padding-bottom:27px}
.showcase {
  max-width:1100px}
.video-surface {
  border:1px solid #cdd4df;
  border-radius:6px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 12px 25px #1528460c}
.video-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:10px 16px;
  font-size:12px}
.video-heading strong {
  font-weight:600}
.video-heading span {
  font-size:10px;
  color:var(--muted)}
.video-frame {
  position:relative;
  aspect-ratio:1600/806;
  background:#202224}
.video-frame video {
  display:block;
  width:100%;
  height:100%;
  object-fit:contain}
.video-start {
  display:flex;
  align-items:center;
  gap:9px;
  position:absolute;
  right:20px;
  bottom:18px;
  background:var(--accent);
  color:white;
  border:1px solid #2458c4;
  border-radius:4px;
  padding:10px 16px;
  font-size:12px;
  font-weight:600;
  box-shadow:0 3px 16px #0003}
.video-start:hover {
  background:#1c46a0}
.video-caption {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  margin-top:11px;
  font-size:11px;
  color:#606773}
.video-caption .link {
  font-size:11px;
  flex:none}
.media-error {
  padding:15px;
  background:#f9efdf;
  font-size:12px}
.proof-strip {
  padding:27px 0;
  border-bottom:1px solid var(--line)}
.proof-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:35px}
.proof-item {
  display:grid;
  grid-template-columns:25px 1fr;
  gap:12px}
.proof-item svg {
  color:#3f5c8b;
  margin-top:3px}
.proof-item strong {
  font-size:14px;
  font-weight:600}
.proof-item p {
  font-size:12px;
  margin-top:3px}
.section {
  padding:66px 0}
.section-head {
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:30px;
  margin-bottom:27px}
.eyebrow {
  font-size:11px;
  font-weight:600;
  color:#486084;
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:9px}
.eyebrow:before {
  content:"";
  width:6px;
  height:6px;
  background:currentColor}
.section h2,.author-band h2 {
  font-size:30px;
  line-height:1.5;
  font-weight:650}
.section-head p {
  font-size:13px;
  max-width:650px;
  margin-top:9px}
.section-head>.link {
  flex:none}
.feature-tabs {
  display:flex;
  border-bottom:1px solid var(--line);
  gap:27px;
  margin-bottom:23px}
.feature-tabs button {
  display:flex;
  align-items:center;
  gap:9px;
  padding:12px 4px;
  border-bottom:3px solid transparent;
  background:none;
  font-size:14px;
  color:#606773}
.feature-tabs button[aria-selected=true] {
  color:var(--ink);
  font-weight:650;
  border-color:var(--accent)}
.feature-description {
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:24px;
  margin-bottom:20px;
  min-height:62px}
.feature-description h3 {
  font-size:20px;
  line-height:1.5;
  font-weight:600}
.feature-description p {
  font-size:13px;
  margin-top:5px;
  max-width:870px}
.feature-description .link {
  flex:none}
.screen-button {
  display:block;
  width:100%;
  padding:0;
  border:1px solid #c6cdd7;
  border-radius:6px;
  background:#1e1e1e;
  overflow:hidden;
  cursor:zoom-in}
.screen-button img {
  display:block;
  width:100%;
  height:auto}
.screen-frame {
  aspect-ratio:16/9;
  object-fit:contain;
  background:#1e1e1e}
.screen-caption {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-top:11px;
  font-size:11px;
  color:#606773}
.block-categories {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:30px;
  padding-top:24px;
  border-top:1px solid var(--line)}
.block-category {
  border-left:2px solid #7b9fcd;
  padding-left:13px}
.block-category:nth-child(2) {
  border-color:#d4b065}
.block-category:nth-child(3) {
  border-color:#6fa88f}
.block-category:nth-child(4) {
  border-color:#9d8fbb}
.block-category strong {
  font-size:13px;
  font-weight:600}
.block-category p {
  font-size:12px;
  margin-top:4px}
.devkit-section {
  background:#f1f3f6;
  border-block:1px solid #e0e7ed}
.devkit-section .eyebrow {
  color:#496382}
.release-status {
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:#325d65;
  background:#e4eeef;
  padding:3px 8px;
  border-radius:3px;
  font-size:11px;
  font-weight:500;
  margin-left:10px;
  vertical-align:middle}
.release-status:before {
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:#3d7279}
.devkit-actions {
  display:flex;
  align-items:center;
  gap:20px;
  margin-bottom:25px}
.devkit-steps {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:36px;
  margin-top:27px}
.devkit-steps article {
  border-top:1px solid #cbd7e1;
  padding-top:17px}
.step-number {
  font-size:11px;
  color:#496382;
  display:block;
  margin-bottom:7px}
.devkit-steps h3 {
  font-size:17px;
  font-weight:600}
.devkit-steps p {
  font-size:12px;
  margin-top:6px}
.author-band {
  background:#292c32;
  color:#f5f6f8;
  padding:51px 0}
.author-grid {
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:70px;
  align-items:center}
.author-band .eyebrow {
  color:#a9c2ec}
.author-band p {
  color:#bec5d0;
  font-size:13px;
  max-width:470px;
  margin-top:14px}
.author-band .button {
  margin-top:21px}
.delivery-row {
  display:flex;
  gap:17px;
  border-bottom:1px solid #515762;
  padding:17px 0}
.delivery-row:last-child {
  border:0}
.delivery-row small {
  color:#acc5ed;
  font-size:10px;
  margin-top:3px}
.delivery-row strong {
  font-size:14px;
  font-weight:500}
.delivery-row p {
  font-size:11px;
  margin-top:4px}
.start-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:23px}
.start-card {
  border:1px solid var(--line);
  border-radius:6px;
  padding:25px;
  display:flex;
  align-items:flex-start;
  flex-direction:column}
.start-card>svg {
  color:#4269a8;
  width:23px;
  height:23px;
  margin-bottom:17px}
.start-card:nth-child(2)>svg {
  color:#4b6f87}
.start-card:nth-child(3)>svg {
  color:#90704c}
.start-card h3 {
  font-size:18px;
  font-weight:600}
.start-card p {
  font-size:12px;
  margin-top:8px;
  flex:1}
.start-card .link {
  font-size:12px;
  margin-top:16px}
.faq-section {
  background:#f5f6f8;
  padding:40px 0}
.faq-grid {
  display:grid;
  grid-template-columns:1fr 1.8fr;
  gap:60px}
.faq-grid h2 {
  font-size:25px;
  font-weight:600}
.faq details {
  border-bottom:1px solid #dce0e6}
.faq details:first-child {
  border-top:1px solid #dce0e6}
.faq summary {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:13px;
  padding:15px 0;
  cursor:pointer;
  list-style:none}
.faq summary::-webkit-details-marker {
  display:none}
.faq details[open] svg {
  transform:rotate(45deg)}
.faq details p {
  font-size:12px;
  padding:0 22px 16px 0}
.faq p a {
  color:#2458c4;
  text-decoration:underline;
  text-underline-offset:3px}
.footer {
  padding:29px 0 20px}
.footer-top {
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:25px}
.footer-links {
  display:flex;
  gap:20px;
  flex-wrap:wrap;
  font-size:12px}
.footer-bottom {
  border-top:1px solid var(--line);
  padding-top:16px;
  margin-top:23px;
  font-size:10px;
  color:#606773;
  display:flex;
  justify-content:space-between;
  gap:20px}
.registration-links {
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  width:100%;
  margin-top:12px;
  font-size:12px;
  line-height:1.8;
  color:#606773;
  overflow-wrap:anywhere}
.registration-links a {
  display:inline-flex;
  align-items:center;
  gap:5px}
.registration-links img {
  flex:none}
.registration-links a:hover {
  color:#2458c4;
  text-decoration:underline;
  text-underline-offset:3px}
.registration-links a:focus-visible {
  outline:3px solid #4267bb;
  outline-offset:4px}
.author-preview {
  background:#e9edf3;
  padding:25px;
  border-radius:6px}
.author-preview-title {
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:12px;
  margin-bottom:20px}
.author-preview-title span {
  color:var(--muted);
  font-size:10px}
.handoff-doc {
  display:grid;
  grid-template-columns:200px 1fr;
  background:white;
  border:1px solid #d4dbe5;
  border-radius:6px}
.doc-list {
  display:flex;
  flex-direction:column;
  gap:7px;
  padding:24px 17px;
  border-right:1px solid var(--line)}
.doc-list button {
  background:none;
  text-align:left;
  padding:10px;
  font-size:12px;
  border-radius:3px}
.doc-list button[aria-selected=true] {
  background:#eaf0fa;
  color:#244d95;
  font-weight:600}
.doc-main {
  padding:24px 29px;
  min-height:310px}
.doc-main h3 {
  font-size:23px;
  font-weight:600}
.doc-main>p {
  font-size:12px;
  margin-top:7px}
.doc-checks {
  margin-top:19px}
.doc-check {
  display:flex;
  align-items:center;
  gap:12px;
  border-top:1px solid #e4e8ef;
  padding:10px 0;
  font-size:12px}
.doc-check input {
  accent-color:#2458c4;
  width:16px;
  height:16px;
  flex:none}
.doc-bottom {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:15px;
  margin-top:15px;
  font-size:11px;
  color:#606773}
.doc-bottom .link {
  font-size:11px}
.author-note {
  font-size:11px;
  color:#606773;
  margin-top:10px}
dialog {
  width:min(570px,calc(100% - 28px));
  padding:0;
  border:1px solid #d4dbe5;
  border-radius:6px;
  color:var(--ink);
  max-height:90%;
  overflow:auto;
  box-shadow:0 25px 90px #14233f40}
dialog::backdrop {
  background:#161c2899}
.dialog-head {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:15px;
  padding:18px 22px;
  border-bottom:1px solid var(--line)}
.dialog-head h2 {
  font-size:19px;
  font-weight:600}
.close {
  display:flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  background:#f1f3f7;
  border-radius:3px;
  flex:none}
.dialog-body {
  padding:23px;
  font-size:14px}
.dialog-body ol {
  padding-left:20px;
  color:var(--muted)}
.dialog-body li {
  margin:10px 0}
.dialog-body p+p {
  margin-top:15px}
.dialog-note {
  font-size:12px;
  color:#606773;
  margin-top:18px;
  border-top:1px solid var(--line);
  padding-top:15px}
.dialog-foot {
  display:flex;
  justify-content:flex-end;
  padding:0 23px 22px}
.lightbox {
  width:min(1510px,calc(100% - 30px))}
.lightbox .dialog-body {
  padding:0;
  overflow:auto;
  background:#1e1e1e}
.lightbox img {
  display:block;
  width:100%;
  height:auto}
.lightbox .dialog-foot {
  padding:12px 20px}
.lightbox .dialog-head {
  padding:12px 20px}

@media(max-width:1100px) {
  .container {
  width:calc(100% - 48px)}
.nav {
  gap:18px}
.header {
  gap:20px}
.brand small {
  display:none}
.hero h1 {
  font-size:33px}
.section {
  padding:52px 0}
.author-grid {
  gap:35px}
.block-categories {
  gap:15px}
}

@media(max-width:760px) {
  .container {
  width:calc(100% - 36px)}
.header {
  height:auto;
  min-height:68px;
  flex-wrap:wrap;
  padding:12px 0;
  gap:12px}
.brand {
  font-size:18px;
  gap:8px}
.brand img {
  width:30px;
  height:30px}
.header>.button {
  margin-left:auto;
  min-height:40px;
  padding:8px 12px;
  font-size:12px}
.menu {
  display:flex}
.nav {
  display:none;
  order:4;
  width:100%;
  margin:0;
  flex-direction:column;
  gap:0}
.nav.open {
  display:flex}
.nav a {
  padding:10px 0;
  border-top:1px solid var(--line)}
.hero {
  padding:14px 0 20px}
.audience-tabs {
  gap:25px;
  margin-bottom:11px}
.audience-tabs button {
  font-size:12px;
  gap:7px}
.hero-kicker {
  font-size:10px;
  margin-bottom:7px}
.hero h1 {
  font-size:28px;
  line-height:1.4}
.title-opening {
  display:block}
.hero-sub {
  font-size:12px;
  margin-top:10px}
.hero-actions {
  gap:17px;
  margin-top:16px}
.hero-actions .button,.hero-actions .link {
  font-size:12px}
.hero-actions .button {
  padding:9px 15px;
  min-height:42px}
.demo-band {
  padding-bottom:21px}
.video-heading {
  padding:9px 11px;
  gap:8px;
  font-size:11px}
.video-heading span {
  font-size:9px}
.video-start {
  right:11px;
  bottom:10px;
  padding:8px 12px;
  font-size:11px;
  gap:7px}
.video-start svg {
  width:14px;
  height:14px}
.video-caption {
  display:block;
  font-size:10px;
  margin-top:8px}
.video-caption .link {
  font-size:11px;
  padding-top:6px}
.proof-strip {
  padding:22px 0}
.proof-grid {
  grid-template-columns:1fr;
  gap:17px}
.proof-item {
  gap:10px}
.proof-item strong {
  font-size:13px}
.proof-item p {
  font-size:11px;
  margin-top:1px}
.section {
  padding:41px 0}
.section-head {
  align-items:flex-start;
  flex-direction:column;
  gap:10px;
  margin-bottom:22px}
.section h2,.author-band h2 {
  font-size:26px}
.section-head p {
  font-size:12px}
.section-head>.link {
  font-size:12px}
.eyebrow {
  font-size:10px}
.feature-tabs {
  gap:0;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  margin-bottom:19px}
.feature-tabs button {
  padding:10px 4px;
  font-size:12px;
  gap:6px;
  justify-content:center}
.feature-tabs svg {
  width:15px;
  height:15px}
.feature-description {
  min-height:112px;
  display:block;
  margin-bottom:16px}
.feature-description h3 {
  font-size:19px}
.feature-description p {
  font-size:12px}
.feature-description .link {
  font-size:11px;
  margin-top:3px}
.screen-caption {
  font-size:10px;
  gap:10px;
  align-items:flex-start}
.block-categories {
  grid-template-columns:1fr 1fr;
  gap:20px 15px;
  margin-top:23px;
  padding-top:20px}
.block-category strong {
  font-size:12px}
.block-category p {
  font-size:11px}
.release-status {
  font-size:10px;
  margin-left:6px}
.devkit-actions {
  gap:15px;
  flex-wrap:wrap;
  margin-bottom:21px}
.devkit-actions .button,.devkit-actions .link {
  font-size:12px}
.devkit-steps {
  grid-template-columns:1fr;
  gap:21px;
  margin-top:23px}
.devkit-steps article {
  padding-top:13px}
.devkit-steps h3 {
  font-size:16px}
.devkit-steps p {
  margin-top:4px}
.step-number {
  margin-bottom:4px}
.author-band {
  padding:38px 0}
.author-grid {
  grid-template-columns:1fr;
  gap:23px}
.author-band p {
  font-size:12px}
.delivery-row {
  padding:13px 0}
.start-grid {
  grid-template-columns:1fr;
  gap:12px}
.start-card {
  display:grid;
  grid-template-columns:25px 1fr;
  column-gap:13px;
  padding:21px}
.start-card>svg {
  grid-row:1/4;
  margin-top:2px}
.start-card h3 {
  font-size:16px}
.start-card p {
  margin-top:5px}
.start-card .link {
  margin-top:10px}
.faq-section {
  padding:33px 0}
.faq-grid {
  grid-template-columns:1fr;
  gap:21px}
.faq-grid h2 {
  font-size:24px}
.footer-top {
  align-items:flex-start;
  flex-direction:column;
  gap:20px}
.footer-links {
  gap:14px}
.footer-bottom {
  flex-direction:column;
  gap:8px}
.author-preview {
  padding:17px 13px}
.author-preview-title {
  font-size:11px;
  margin-bottom:15px}
.handoff-doc {
  grid-template-columns:1fr}
.doc-list {
  flex-direction:row;
  justify-content:space-between;
  border-right:0;
  border-bottom:1px solid var(--line);
  padding:10px;
  gap:4px}
.doc-list button {
  padding:9px 6px;
  font-size:11px}
.doc-main {
  padding:19px;
  min-height:320px}
.doc-main h3 {
  font-size:22px}
.doc-check {
  font-size:11px}
.doc-main>p {
  font-size:11px}
.lightbox img {
  width:auto;
  max-width:none;
  min-width:100%;
  height:auto}
.lightbox .dialog-head h2 {
  font-size:16px}
}

@media(max-width:370px) {
  .container {
  width:calc(100% - 28px)}
.header {
  gap:8px}
.brand {
  font-size:16px;
  gap:6px}
.brand img {
  width:27px;
  height:27px}
.header>.button {
  font-size:11px;
  padding:7px 9px;
  gap:6px}
.menu {
  width:36px}
.hero h1 {
  font-size:25px}
.hero-actions {
  gap:12px}
.hero-actions .button {
  padding:9px 12px}
.hero-actions .link {
  font-size:11px}
.audience-tabs {
  gap:22px}
.video-heading span {
  display:none}
.feature-tabs button {
  font-size:11px;
  gap:5px}
.section h2 {
  font-size:24px}
.feature-description {
  min-height:128px}
.doc-main {
  padding:16px}
}

@media(prefers-reduced-motion:reduce) {
  html {
  scroll-behavior:auto}
}

@media(min-width:761px) {
  .header {
  height:68px}
.hero {
  padding:10px 0 16px}
.audience-tabs {
  margin-bottom:8px}
.audience-tabs button {
  padding:5px 0 7px}
.hero-kicker {
  margin-bottom:4px;
  font-size:10px}
.hero h1 {
  font-size:34px}
.hero-sub {
  margin-top:7px}
.hero-actions {
  margin-top:12px}
.showcase {
  max-width:1020px}
.demo-band {
  padding-bottom:20px}
}

.screen-frame {
  aspect-ratio:72/41}

.skip-link {
  position:absolute;
  left:16px;
  top:-100px;
  z-index:10;
  padding:10px 18px;
  border-radius:4px;
  background:var(--accent);
  color:white;
}
.skip-link:focus { top:12px; }
.demo-transcript {
  margin-top:10px;
  color:var(--muted);
  font-size:11px;
}
.demo-transcript summary { cursor:pointer; width:fit-content; }
.demo-transcript p { max-width:870px; margin-top:8px; line-height:1.8; }
.noscript-note { padding:20px; text-align:center; font-size:13px; }
.noscript-note a { color:var(--accent); text-decoration:underline; }